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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Animal Science and Veterinary 28 2750 2496 776 637 82 2086

John W. Walker publications per year

The chart shows the history of publications by John W. Walker between 1966 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. John W. Walker published across 61 years, from 1966 to 2026, averaging 1.9 papers a year. Output peaked at 7 publications in 2019. 5 of the 114 publications appeared in the last two years.

No. of publications
2 4 6
Bar chart. Horizontal axis: year, 1966 to 2026. Vertical axis: number of publications, 0 to 7. Peak 7 publications in 2019. 1966: 1 publication 1967: 0 publications 1968: 1 publication 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 1 publication 1973: 2 publications 1974: 1 publication 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 1 publication 1982: 0 publications 1983: 1 publication 1984: 0 publications 1985: 2 publications 1986: 1 publication 1987: 3 publications 1988: 0 publications 1989: 4 publications 1990: 2 publications 1991: 3 publications 1992: 3 publications 1993: 6 publications 1994: 2 publications 1995: 4 publications 1996: 1 publication 1997: 1 publication 1998: 2 publications 1999: 3 publications 2000: 0 publications 2001: 2 publications 2002: 1 publication 2003: 2 publications 2004: 0 publications 2005: 3 publications 2006: 1 publication 2007: 5 publications 2008: 4 publications 2009: 3 publications 2010: 5 publications 2011: 1 publication 2012: 2 publications 2013: 1 publication 2014: 0 publications 2015: 1 publication 2016: 1 publication 2017: 2 publications 2018: 3 publications 2019: 7 publications 2020: 3 publications 2021: 6 publications 2022: 2 publications 2023: 4 publications 2024: 5 publications 2025: 3 publications 2026: 2 publications
1966 2026

114 publications in total across all disciplines

View publications per year as a table
John W. Walker: publications per year, 1966 to 2026
Year Publications
1966 1
1967 0
1968 1
1969 0
1970 0
1971 0
1972 1
1973 2
1974 1
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 1
1982 0
1983 1
1984 0
1985 2
1986 1
1987 3
1988 0
1989 4
1990 2
1991 3
1992 3
1993 6
1994 2
1995 4
1996 1
1997 1
1998 2
1999 3
2000 0
2001 2
2002 1
2003 2
2004 0
2005 3
2006 1
2007 5
2008 4
2009 3
2010 5
2011 1
2012 2
2013 1
2014 0
2015 1
2016 1
2017 2
2018 3
2019 7
2020 3
2021 6
2022 2
2023 4
2024 5
2025 3
2026 2
Total 114
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John W. Walker publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where John W. Walker sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 84 bars. Horizontal axis: publications, 29–33 to 442+. Vertical axis: number of scientists, 0 to 109. Most scientists, 109, have 119–123 publications. The last bar groups every scientist with 442 publications or more. The highlighted bar, 79–83 publications, is where this scientist sits. 29–33 publications: 1 scientist 34–38 publications: 6 scientists 39–43 publications: 17 scientists 44–48 publications: 23 scientists 49–53 publications: 28 scientists 54–58 publications: 44 scientists 59–63 publications: 66 scientists 64–68 publications: 75 scientists 69–73 publications: 71 scientists 74–78 publications: 85 scientists 79–83 publications: 108 scientists 84–88 publications: 105 scientists 89–93 publications: 84 scientists 94–98 publications: 103 scientists 99–103 publications: 97 scientists 104–108 publications: 95 scientists 109–113 publications: 89 scientists 114–118 publications: 88 scientists 119–123 publications: 109 scientists 124–128 publications: 93 scientists 129–133 publications: 89 scientists 134–138 publications: 95 scientists 139–143 publications: 92 scientists 144–148 publications: 80 scientists 149–153 publications: 75 scientists 154–158 publications: 74 scientists 159–163 publications: 67 scientists 164–168 publications: 53 scientists 169–173 publications: 62 scientists 174–178 publications: 63 scientists 179–183 publications: 50 scientists 184–188 publications: 55 scientists 189–193 publications: 50 scientists 194–198 publications: 27 scientists 199–203 publications: 44 scientists 204–208 publications: 31 scientists 209–213 publications: 28 scientists 214–218 publications: 38 scientists 219–223 publications: 33 scientists 224–228 publications: 36 scientists 229–233 publications: 29 scientists 234–238 publications: 35 scientists 239–243 publications: 23 scientists 244–248 publications: 24 scientists 249–253 publications: 29 scientists 254–258 publications: 28 scientists 259–263 publications: 21 scientists 264–268 publications: 25 scientists 269–273 publications: 11 scientists 274–278 publications: 18 scientists 279–283 publications: 13 scientists 284–288 publications: 18 scientists 289–293 publications: 10 scientists 294–298 publications: 12 scientists 299–303 publications: 11 scientists 304–308 publications: 15 scientists 309–313 publications: 14 scientists 314–318 publications: 14 scientists 319–323 publications: 8 scientists 324–328 publications: 8 scientists 329–333 publications: 13 scientists 334–338 publications: 14 scientists 339–343 publications: 13 scientists 344–348 publications: 10 scientists 349–353 publications: 11 scientists 354–358 publications: 5 scientists 359–363 publications: 8 scientists 364–368 publications: 8 scientists 369–373 publications: 6 scientists 374–378 publications: 7 scientists 379–383 publications: 8 scientists 384–388 publications: 3 scientists 389–393 publications: 4 scientists 394–398 publications: 5 scientists 399–403 publications: 8 scientists 404–408 publications: 5 scientists 409–413 publications: 4 scientists 414–418 publications: 3 scientists 419–423 publications: 8 scientists 424–428 publications: 5 scientists 429–433 publications: 3 scientists 434–438 publications: 5 scientists 439–441 publications: 5 scientists 442+ publications: 99 scientists
29–33 publications 442+

This scientist: 82 publications — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 442 publications or more.

View publications distribution as a table
Number of Animal Science and Veterinary scientists by publication count, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
Publications Scientists This scientist
29–33 1
34–38 6
39–43 17
44–48 23
49–53 28
54–58 44
59–63 66
64–68 75
69–73 71
74–78 85
79–83 108 82
84–88 105
89–93 84
94–98 103
99–103 97
104–108 95
109–113 89
114–118 88
119–123 109
124–128 93
129–133 89
134–138 95
139–143 92
144–148 80
149–153 75
154–158 74
159–163 67
164–168 53
169–173 62
174–178 63
179–183 50
184–188 55
189–193 50
194–198 27
199–203 44
204–208 31
209–213 28
214–218 38
219–223 33
224–228 36
229–233 29
234–238 35
239–243 23
244–248 24
249–253 29
254–258 28
259–263 21
264–268 25
269–273 11
274–278 18
279–283 13
284–288 18
289–293 10
294–298 12
299–303 11
304–308 15
309–313 14
314–318 14
319–323 8
324–328 8
329–333 13
334–338 14
339–343 13
344–348 10
349–353 11
354–358 5
359–363 8
364–368 8
369–373 6
374–378 7
379–383 8
384–388 3
389–393 4
394–398 5
399–403 8
404–408 5
409–413 4
414–418 3
419–423 8
424–428 5
429–433 3
434–438 5
439–441 5
442+ 99
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John W. Walker D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where John W. Walker sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 58 bars. Horizontal axis: D-Index, 20 to 77+. Vertical axis: number of scientists, 0 to 158. Most scientists, 158, have 31 D-Index. The last bar groups every scientist with 77 D-Index or more. The highlighted bar, 28 D-Index, is where this scientist sits. 20 D-Index: 5 scientists 21 D-Index: 22 scientists 22 D-Index: 31 scientists 23 D-Index: 44 scientists 24 D-Index: 53 scientists 25 D-Index: 66 scientists 26 D-Index: 80 scientists 27 D-Index: 101 scientists 28 D-Index: 106 scientists 29 D-Index: 116 scientists 30 D-Index: 154 scientists 31 D-Index: 158 scientists 32 D-Index: 143 scientists 33 D-Index: 137 scientists 34 D-Index: 126 scientists 35 D-Index: 134 scientists 36 D-Index: 112 scientists 37 D-Index: 115 scientists 38 D-Index: 105 scientists 39 D-Index: 111 scientists 40 D-Index: 107 scientists 41 D-Index: 87 scientists 42 D-Index: 74 scientists 43 D-Index: 62 scientists 44 D-Index: 61 scientists 45 D-Index: 41 scientists 46 D-Index: 51 scientists 47 D-Index: 43 scientists 48 D-Index: 28 scientists 49 D-Index: 47 scientists 50 D-Index: 40 scientists 51 D-Index: 34 scientists 52 D-Index: 33 scientists 53 D-Index: 43 scientists 54 D-Index: 16 scientists 55 D-Index: 32 scientists 56 D-Index: 21 scientists 57 D-Index: 18 scientists 58 D-Index: 28 scientists 59 D-Index: 33 scientists 60 D-Index: 17 scientists 61 D-Index: 21 scientists 62 D-Index: 18 scientists 63 D-Index: 21 scientists 64 D-Index: 9 scientists 65 D-Index: 20 scientists 66 D-Index: 11 scientists 67 D-Index: 16 scientists 68 D-Index: 12 scientists 69 D-Index: 17 scientists 70 D-Index: 13 scientists 71 D-Index: 15 scientists 72 D-Index: 11 scientists 73 D-Index: 11 scientists 74 D-Index: 14 scientists 75 D-Index: 5 scientists 76 D-Index: 6 scientists 77+ D-Index: 100 scientists
20 D-Index 77+

This scientist: 28 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 77 D-Index or more.

View D-Index distribution as a table
Number of Animal Science and Veterinary scientists by D-index, Research.com 2026 ranking edition. Based on 3,155 ranked scientists.
D-Index Scientists This scientist
20 5
21 22
22 31
23 44
24 53
25 66
26 80
27 101
28 106 28
29 116
30 154
31 158
32 143
33 137
34 126
35 134
36 112
37 115
38 105
39 111
40 107
41 87
42 74
43 62
44 61
45 41
46 51
47 43
48 28
49 47
50 40
51 34
52 33
53 43
54 16
55 32
56 21
57 18
58 28
59 33
60 17
61 21
62 18
63 21
64 9
65 20
66 11
67 16
68 12
69 17
70 13
71 15
72 11
73 11
74 14
75 5
76 6
77+ 100
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Overview

John W. Walker is affiliated with Texas A&M University in the United States and has an extensive publication record within Environmental Science and Agricultural and Biological Sciences. Their work spans multiple subfields, including Agronomy and Crop Science, Ecology, Management, Monitoring, Policy and Law, Molecular Biology, and Global and Planetary Change.

Walker's research topics cover a broad range of subjects related to ruminant nutrition and digestive physiology, rangeland and wildlife management, landslides and related hazards, karst systems and hydrogeology, spectroscopy and chemometric analyses, meat and animal product quality, as well as plant toxicity and pharmacological properties.

Recent papers include:

  • Saving imperiled grassland biomes by recoupling fire and grazing: a case study from the Great Plains (2021, Frontiers in Ecology and the Environment)
  • Woody plant encroachment modifies carbonate bedrock: field evidence for enhanced weathering and permeability (2023, Scientific Reports)
  • Hsp90 inhibition leads to an increase in surface expression of multiple immunological receptors in cancer cells (2024, Frontiers in Molecular Biosciences)
  • Applicability of soil moisture sensors for monitoring water dynamics in rock: A field test in weathered limestone (2021, Vadose Zone Journal)
  • Raman spectroscopy of fresh feces is a practical tool for identifying animal species and estimating diet characteristics (2021, Animal Feed Science and Technology)

Frequent coauthors who have collaborated with Walker multiple times include Bradford P. Wilcox, Danilo Gusmão de Quadros, Pedro A. M. Leite, Kevin J. McInnes, and Samuel D. Fuhlendorf.

Walker's research has appeared in several peer-reviewed venues, with multiple publications in the Journal of Animal Science. Other frequent journals include Animal, Translational Animal Science, Frontiers in Ecology and the Environment, and Scientific Reports.

Best Publications

  • Some effects of a rotational grazing treatment on quantity and quality of available forage and amount of ground litter.

    R.K. Heitschmidt;S.L. Dowhower;J.W. Walker

  • Viewpoint: Grazing management and research now and in the next millennium

    John W. Walker

  • Synthesis Paper: Targeted Livestock Grazing: Prescription for Healthy Rangelands

    Derek W. Bailey;Jeffrey C. Mosley;Richard E. Estell;Andres F. Cibils

  • Cover components on long-term seasonal sheep grazing treatments in three-tip sagebrush steppe.

    Edward W. Bork;Neil E. West;John W. Walker

  • Training lambs to be weed eaters: Studies with leafy spurge

    John W. Walker;K. G. Hemenway;P. G. Hatfield;H. A. Glimp

  • Assessment of Animal-Based Methods Used for Estimating and Monitoring Rangeland Herbivore Diet Composition☆

    Sarah Garnick;Perry S. Barboza;John W. Walker

  • Some effects of a rotational grazing treatment on cattle preference for plant communities.

    John W. Walker;Rodney K. Heitschmidt;Steve L. Dowhower

  • Comparison of sheep and goat preferences for leafy spurge

    John W. Walker;Scott L. Kronberg;Saud L. Al-Rowaily;Neil E. West

  • Effect of Various Grazing Systems on Type and Density of Cattle Trails

    John W. Walker;R. K. Heitschmidt

  • 14- vs. 42-Paddock rotational grazing: aboveground biomass dynamics, forage production, and harvest efficiency.

    R.K. Heitschmidt;S.L. Dowhower;J.W. Walker

  • Cow/calf production and economic returns from yearlong continuous, deferred rotation and rotational grazing treatments

    R. K. Heitschmidt;J. R. Conner;S. K. Canon;W. E. Pinchak

  • Sequential analysis of cattle location: Day-to-day movement patterns

    D.W. Bailey;J.W. Walker;L.R. Rittenhouse

  • Ruminal metabolism of leafy spurge in sheep and goats : a potential explanation for differential foraging on spurge by sheep, goats, and cattle

    Scott L. Kronberg;John W. Walker

  • Fecal NIRS for predicting percent leafy spurge in diets.

    John W. Walker;D.H. Clark;Scott D. McCoy

  • Breed and maternal effects on the intake of tannin-rich browse by juvenile domestic goats (Capra hircus)

    Tzach Aharon Glasser;Eugene David Ungar;Serge Yan Landau;Avi Perevolotsky

  • Quality and botanical composition of cattle diets under rotational and continuous grazing treatments.

    John W. Walker;Rodney K. Heitschmidt;Elino A. D;Merwyn M. Kothmann

  • Calibrating fecal NIRS equations for predicting botanical composition of diets.

    John W. Walker;Scott D. Mccoy;Karen L. Launchbaugh;Merrita J. Fraker

  • Effects of Supplementation on Juniper Intake by Goats

    Erika S. Campbell;Charles A. Taylor;John W. Walker;Christopher J. Lupton

  • A fecal near-infrared reflectance spectroscopy-aided methodology to determine goat dietary composition in a Mediterranean shrubland.

    T. Glasser;S. Landau;E. D. Ungar;A. Perevolotsky

  • Development of a contagious ecthyma vaccine for goats.

    Jeffrey M. B. Musser;Charles A. Taylor;Jianhua Guo;Ian R. Tizard

  • Foraging selectivity of three goat breeds in a Mediterranean shrubland

    T.A. Glasser;S.Y. Landau;E.D. Ungar;A. Perevolotsky

Frequent Co-Authors

Serge Yan Landau
Serge Yan Landau Agricultural Research Organization
Eugene D. Ungar
Eugene D. Ungar Agricultural Research Organization
Avi Perevolotsky
Avi Perevolotsky Agricultural Research Organization
Neil E. West
Neil E. West Utah State University
Derek W. Bailey
Derek W. Bailey New Mexico State University
Robert P. Adams
Robert P. Adams Baylor University
Edward W. Bork
Edward W. Bork University of Alberta
Bradford P. Wilcox
Bradford P. Wilcox Texas A&M University
James P. Muir
James P. Muir Texas A&M University
Thomas H. Welsh
Thomas H. Welsh Texas A&M University

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Related Online Degrees & Career Pathways

For students interested in Animal Science and Veterinary studies, related online degrees often open doors to specialized career pathways in health and behavioral sciences. Exploring nasp accredited school psychology programs can be a natural extension for those passionate about animal behavior and mental health.

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For those leaning toward therapeutic support roles, earning a substance abuse counselor degree online can prepare graduates to address critical behavioral health issues in both human and animal-assisted therapy contexts.

Additionally, online marriage and family therapy programs offer flexible paths for professionals aiming to integrate family dynamics and counseling skills, which are invaluable when considering the broader impact of caregiving in veterinary and animal-related fields.

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